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LCOS chip resolution conversion method based on time color mixing

A time color mixing and resolution technology, applied in color TV components, color TV, color signal processing circuits, etc., can solve problems such as loss of light efficiency, and achieve the effect of solving flickering problems, reducing production costs and reducing costs.

Pending Publication Date: 2021-08-27
CHENGDU JIUTIAN HUAXIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the filtering effect of the color filter on the light, at least two-thirds of the light efficiency is lost, and considering the influence of aperture ratio and polarization effect, the actual display resolution of the LCOS chip using the CF mode is only the original resolution of the display. one third

Method used

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  • LCOS chip resolution conversion method based on time color mixing
  • LCOS chip resolution conversion method based on time color mixing
  • LCOS chip resolution conversion method based on time color mixing

Examples

Experimental program
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Embodiment Construction

[0035] Such as image 3 Shown, the present invention comprises the following steps:

[0036] S101: LCOS chip tape-out production; wherein, the LCOS aluminum reflective layer is not covered with a color filter film;

[0037] S102: Decode and transform the input VGA signal through the A / D module, including analog-to-digital conversion and allocation rate configuration;

[0038] S103: Differentiate the decoded and transformed VGA signal into three frames of separate RGB signals through the FPGA;

[0039] S104: Send three frames of separate RGB signals to the LCOS chip sequentially according to the subfield driving timing;

[0040] S105: Synthesize the differentiated frames into high-resolution video signals.

[0041] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples.

[0042] This embodiment takes a 320*240 resolution CF mode LCOS ...

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Abstract

The invention discloses an LCOS (Liquid Crystal On Silicon) chip resolution conversion method based on time color mixing, which comprises the following steps of: firstly, manufacturing an LCOS chip tape-out which is not covered with a color filter film, then decoding and converting an input VGA (Video Graphics Array) signal through an A / D (Analog to Digital) module, and then differentiating the decoded and converted VGA signal into three frames of independent RGB (Red, Green, Blue) signals through an FPGA (Field Programmable Gate Array), and three frames of independent RGB signals are successively sent to the LCOS chip according to a subfield driving time sequence, and finally the differentiated frames are synthesized into high-resolution video signals. According to the invention, the conversion from the CF mode LCOS chip with lower resolution to the CS mode LCOS chip with higher resolution can be realized on the premise of not changing the existing production process flow, the tape-out cost of the chip is reduced, the research and development risk is reduced, and the obtained chip is high in aperture ratio, high in pixel resolution, good in color rendition degree and high in production yield.

Description

technical field [0001] The invention belongs to the technical fields of liquid crystal display, time-sequential color display and optical communication, and in particular relates to a time-mixed color-based LCOS chip resolution conversion method. Background technique [0002] Such as figure 1 As shown, the CF mode LCOS chip (Color Filter Liquid Crystal on Silicon) is a silicon-based liquid crystal covered with a color filter film CF layer. This process is an early LCOS process based on the spatial color mixing method for color display. The color mode is the same as that of ordinary TFT LCD. Similarly, a pixel is composed of three sub-pixels, and the backlight uses a white light source. When the chip is tapered, it is necessary to cover a layer of color filter film on the aluminum reflective layer to form the CF layer. Due to the filtering effect of the color filter on the light, at least two-thirds of the light efficiency is lost, and considering the influence of aperture r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64H04N9/76G02F1/1362
CPCH04N9/646H04N9/76G02F1/136277
Inventor 张锦
Owner CHENGDU JIUTIAN HUAXIN TECH CO LTD
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